bottom water circulation

基本解释

The bottom is the mezzanine with built-in water circulation system which has better thermostatic performance than air cooling system is good, improved pellet quality.
槽底为夹层，内置水冷循环系统，恒温性能比一般气冷系统好，提高了颗粒质量。
This research shows that: mud springs are a special kind of spring, whose mud comes from bottom mud of lakes and water comes from groundwater at different circulation depths.
研究结果表明，湖眼泥浆来自湖盆底泥，其水分可来自不同循环深度的地下水；
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The nature of the bottom, the circulation of the deep currents, and the chemistry of the water are poorly understood.
（我们对）海底的自然生态、深海水流的循环，以及海水化学目前都知之甚少。